Hydrogen peroxide is usually storage in a warehouse which is cool and ventilated. The storage temperature can not exceed 30 degree and keep far away from fire and heat source. The container should keep seal up and separate it with flammable, reducing agent, active metal powder and others. Don’t mixed storage. The storage area should be provided with emergency treatment equipment and proper housing materials.
Workers who connect hydrogen peroxide must through specialized training and obey the operation rules strictly. Certainly operation must be in the environment with sealed and overall ventilation. We also suggest that operator wear self suction filtration mask, polyethylene protective clothing and chloroprene rubber gloves.
Keep away from fire, heat source, flammable and combustible to prevent steam leakage in the air of workplace. Avoid hydrogen peroxide contact with reducing agent, active metal powder. You must move the hydrogen peroxide lightly in order to prevent damaging of packaging and containers. At the same time equipped with the appropriate variety and number of fire equipment and emergency treatment equipment. Empty containers may be left harmful substances.
Hydrogen peroxide has strong oxidation and usually be regard as oxidizing agent. Hydrogen peroxide is used in medical, military and industrial. Disinfection often use medical hydrogen peroxide in daily life.
Tuesday, July 29, 2014
Tuesday, July 15, 2014
Gray Nail Treated By Acetic Acid
If you have got gray nail,you should manicure the bad one at first. It means that thickened parts repaired with a sharp knife, get rid of bad parts and retention of nail bed. Coating with glacial acetic acid after repaired. Do it for two to three times and last three to six months. You had better make the nail thin before coating. Certainly you should repair the bad nail in a week and try to keep a complete nail bed as far as possible. In generally, the treat last about three months and the nail will return to normal.
The high temperature and high humidity are important conditions for tinea disease. So the tinea disease in summer or rain weather is more easily to happen than in winter or dry weather. Of course, living environment of patient can not be ignored. Morbidity with good ventilation is more low than closed and stuffy wet. Personnel crowded place is also high incidence. So,vocational,trades have a great influence on the tinea disease. Especially in the high temperature and high humidity workshop with heavy work clothes. Morbidity will be improved greatly without any device for shower.
Certainly bad personal hygiene habits will lead to the tinea disease. People who connect with public baths and poor sanitation pool are more easy to get tinea disease. If you have fed cat, dog or any other pets, you should be more careful. Because it is more easier to get tinea on their body.
The high temperature and high humidity are important conditions for tinea disease. So the tinea disease in summer or rain weather is more easily to happen than in winter or dry weather. Of course, living environment of patient can not be ignored. Morbidity with good ventilation is more low than closed and stuffy wet. Personnel crowded place is also high incidence. So,vocational,trades have a great influence on the tinea disease. Especially in the high temperature and high humidity workshop with heavy work clothes. Morbidity will be improved greatly without any device for shower.
Certainly bad personal hygiene habits will lead to the tinea disease. People who connect with public baths and poor sanitation pool are more easy to get tinea disease. If you have fed cat, dog or any other pets, you should be more careful. Because it is more easier to get tinea on their body.
Tuesday, June 24, 2014
Acetic Acid Fermentation
Acetic acid fermentation is one kind of oxidation fermentation. It is a process that ethanol oxidation into acetic acid under the effect of acetic acid bacteria. Besides there are many kinds of microorganisms can also form acetic acid with various compounds through anaerobic activity. But it generally not called acetic acid fermentation.
Acetic acid bacteria is aerobic bacteria. Fermentation is making under aeration conditions and always with the temperature of the range from 25 to 30 centigrade. Acetic acid bacteria need amino acids and vitamins. So there must be adding yeast extract, koji and other organic matter with nitrogen containing to the fermentation liquid.
There are two types of brewing vinegar, they are solid fermentation and liquid fermentation. For example, for saccharification and alcohol fermentation with the original material of starch, finally making acetic acid fermentation. Solid state fermentation is traditional crafts. There are many kinds of microorganisms participate in and product flavor is good. Liquid fermentation is general for industrialized production. It uses pure culture of the fungus and with large output,lower cost, but the flavor is bad.
Vinegar as a life essential items has the important position in food flavoring. Acetic acid can inhibit the growth of spoilage bacteria. You can be kept vegetables fresh and not corruption with vinegar pickled. Acetic acid can also be used as a medical disinfectant. Glacial acetic acid is an important raw material for chemical and pharmaceutical, widely used in printing and dyeing industry. Acetic acid are also widely used in textile industry, fiber industry, pesticide industry, dyestuff industry, plastic industry and others.
Acetic acid bacteria is aerobic bacteria. Fermentation is making under aeration conditions and always with the temperature of the range from 25 to 30 centigrade. Acetic acid bacteria need amino acids and vitamins. So there must be adding yeast extract, koji and other organic matter with nitrogen containing to the fermentation liquid.
There are two types of brewing vinegar, they are solid fermentation and liquid fermentation. For example, for saccharification and alcohol fermentation with the original material of starch, finally making acetic acid fermentation. Solid state fermentation is traditional crafts. There are many kinds of microorganisms participate in and product flavor is good. Liquid fermentation is general for industrialized production. It uses pure culture of the fungus and with large output,lower cost, but the flavor is bad.
Vinegar as a life essential items has the important position in food flavoring. Acetic acid can inhibit the growth of spoilage bacteria. You can be kept vegetables fresh and not corruption with vinegar pickled. Acetic acid can also be used as a medical disinfectant. Glacial acetic acid is an important raw material for chemical and pharmaceutical, widely used in printing and dyeing industry. Acetic acid are also widely used in textile industry, fiber industry, pesticide industry, dyestuff industry, plastic industry and others.
Tuesday, June 17, 2014
Using Acetic Acid Carefully
Acetic acid has corrosive. Its irritation has effect on steam eye and nose. So we should be more careful in using the acetic acid. If the skin contact with acetic acid. You should wash with water first, then use the soap to wash thoroughly. Certainly you should be careful when the acetic acid get into your eyes. Wash your eyes with water at first and then clean with dry cloth. If it is serious, you must go to the hospital immediately. In order to avoid these accident, you can wear protective glasses which with chemical safety in the working and wear rubber gloves. After working, you should take a shower and change your clothes. Don’t take the work clothes into the living area. When concentration in the air is exceed the standard, you should wear masks.
We have 99.9%min glacial acetic acid,99.8%min glacial acetic acid,90%min glacial acetic acid,80%min glacial acetic acid or according to the special requirement by customer. Annual capacity of our glacial acetic acid is 350,000. The raw material is methanol.If you swallow the acetic acid, you must be given an emetic and go to hospital. Likewise it is also dangerous to inhaled acetic acid vapor. Far away from the pollution areas to rest and keep warm at the same time.
We have 99.9%min glacial acetic acid,99.8%min glacial acetic acid,90%min glacial acetic acid,80%min glacial acetic acid or according to the special requirement by customer. Annual capacity of our glacial acetic acid is 350,000. The raw material is methanol.If you swallow the acetic acid, you must be given an emetic and go to hospital. Likewise it is also dangerous to inhaled acetic acid vapor. Far away from the pollution areas to rest and keep warm at the same time.
Wednesday, April 16, 2014
The Methanol Storage
Methanol is an important organic chemical raw materials, and it is widely used in many industry. It can produce formaldehyde, synthetic rubber, methyl chloride,acetic acid and a series of organic chemical products. It is also used for the synthesis of methanol protein.
Methanol consumption structure in our country is similar to foreign countries, and the largest the consumption field is formaldehyde production. The proportion of consumption is about 40%. The second is MTBE and acetic acid, the proportion is 6% and 7% respectively. However with the needing of protecting the environment and the world oil resources become increasingly scarce, the development of methanol fuel consumption become fast in recent year. It becomes one of the majority power of methanol demand. In addition,along with the two ether entered the civil gas market officially, the demand for methanol is expansion quickly. Now the methanol and its downstream products is most likely to become the leading alternative products for the the beginning of the post petroleum Era.
Most suitable storage container to methanol is stainless steel containers and plastic tank. The plastic tank use pure polyethylene as raw material and it uses a special rotational molding process to molding the whole. The plastic tan has many advantages, such as no welding, no leakage, non-toxic, light weight, impact resistance, corrosion resistance, integrated and long life. Certainly, it also could store most inorganic acid, alkali, salt solution and most organic solvents, while can partly replace titanium, stainless steel, high nickel alloy steel and other materials. The production is meet the storage and transportation of dangerous goods regulations and a ideal storage container for methanol and reaction chemical corrosion, clean solution. Methanol in line with national health standards,can replace the stainless steel container to shipment.
Methanol consumption structure in our country is similar to foreign countries, and the largest the consumption field is formaldehyde production. The proportion of consumption is about 40%. The second is MTBE and acetic acid, the proportion is 6% and 7% respectively. However with the needing of protecting the environment and the world oil resources become increasingly scarce, the development of methanol fuel consumption become fast in recent year. It becomes one of the majority power of methanol demand. In addition,along with the two ether entered the civil gas market officially, the demand for methanol is expansion quickly. Now the methanol and its downstream products is most likely to become the leading alternative products for the the beginning of the post petroleum Era.
Most suitable storage container to methanol is stainless steel containers and plastic tank. The plastic tank use pure polyethylene as raw material and it uses a special rotational molding process to molding the whole. The plastic tan has many advantages, such as no welding, no leakage, non-toxic, light weight, impact resistance, corrosion resistance, integrated and long life. Certainly, it also could store most inorganic acid, alkali, salt solution and most organic solvents, while can partly replace titanium, stainless steel, high nickel alloy steel and other materials. The production is meet the storage and transportation of dangerous goods regulations and a ideal storage container for methanol and reaction chemical corrosion, clean solution. Methanol in line with national health standards,can replace the stainless steel container to shipment.
Thursday, October 24, 2013
Isobutanol
Isobutanol is
an organic compound with the formula (CH3)2CHCH2OH. This colorless,
flammable liquid with a characteristic smell is mainly used as a
solvent. Its isomers include n-butanol, 2-butanol, and tert-butanol, all
of which are important industrially.
Isobutanol is produced by the carbonylation of propylene. Two methods are practiced industrially, hydroformylation is more common and generates a mixture of isobutyraldehydes, which are hydrogenated to the alcohols and then separated. Reppe carbonylation is also practiced.
And isobutanol could indeed function as a relatively effective substitute for gasoline — isobutanol releases just around 82% of the heat energy that gasoline does when burned, as compared to the 67% that ethanol does. And, perhaps more importantly, isobutanol doesn’t possess the same significant drawbacks that ethanol does — in particular, it doesn’t possess ethanol’s unfortunate tendency to absorb water, and thus doesn’t damage conventional engines and pipelines in the same way that pure ethanol does. So, while pure ethanol would only be a viable replacement for gasoline if all of the infrastructure in use today was completely replaced, isobutanol cold simply replace gasoline as is — no new infrastructure needed.
Isobutanol — a high-performance biofuel that closely matches the properties of gasoline — can be produced from waste plant materials through the combined actions of a common fungus and a common bacteria, according to new research from the University of Michigan. When paired up together, the fungus Trichoderma reesei, and the bacteria Escherichia coli, can effectively create the biofuel isobutanol from materials such as cornstalks and plant leaves.
While the production of a useful biofuel is impressive enough, the researchers think that the same principle used to produce the biofuel could be used to produce other useful chemicals, such as plastics.
Isobutanol is also produced naturally during the fermentation of carbohydrates and may also be a byproduct of the decay process of organic matter. The biosynthetic pathway used to produce isobutanol was first discovered in species of bacteria from the genus Clostridium. This pathway has been genetically engineered into several species of microorganisms which are more easily manipulated by current scientific methods than microorganisms of the genus Clostridium.
And isobutanol could indeed function as a relatively effective substitute for gasoline — isobutanol releases just around 82% of the heat energy that gasoline does when burned, as compared to the 67% that ethanol does. And, perhaps more importantly, isobutanol doesn’t possess the same significant drawbacks that ethanol does — in particular, it doesn’t possess ethanol’s unfortunate tendency to absorb water, and thus doesn’t damage conventional engines and pipelines in the same way that pure ethanol does. So, while pure ethanol would only be a viable replacement for gasoline if all of the infrastructure in use today was completely replaced, isobutanol cold simply replace gasoline as is — no new infrastructure needed.
Edit by http://www.hiseachem.com
Isobutanol is produced by the carbonylation of propylene. Two methods are practiced industrially, hydroformylation is more common and generates a mixture of isobutyraldehydes, which are hydrogenated to the alcohols and then separated. Reppe carbonylation is also practiced.
And isobutanol could indeed function as a relatively effective substitute for gasoline — isobutanol releases just around 82% of the heat energy that gasoline does when burned, as compared to the 67% that ethanol does. And, perhaps more importantly, isobutanol doesn’t possess the same significant drawbacks that ethanol does — in particular, it doesn’t possess ethanol’s unfortunate tendency to absorb water, and thus doesn’t damage conventional engines and pipelines in the same way that pure ethanol does. So, while pure ethanol would only be a viable replacement for gasoline if all of the infrastructure in use today was completely replaced, isobutanol cold simply replace gasoline as is — no new infrastructure needed.
Isobutanol — a high-performance biofuel that closely matches the properties of gasoline — can be produced from waste plant materials through the combined actions of a common fungus and a common bacteria, according to new research from the University of Michigan. When paired up together, the fungus Trichoderma reesei, and the bacteria Escherichia coli, can effectively create the biofuel isobutanol from materials such as cornstalks and plant leaves.
While the production of a useful biofuel is impressive enough, the researchers think that the same principle used to produce the biofuel could be used to produce other useful chemicals, such as plastics.
Isobutanol is also produced naturally during the fermentation of carbohydrates and may also be a byproduct of the decay process of organic matter. The biosynthetic pathway used to produce isobutanol was first discovered in species of bacteria from the genus Clostridium. This pathway has been genetically engineered into several species of microorganisms which are more easily manipulated by current scientific methods than microorganisms of the genus Clostridium.
And isobutanol could indeed function as a relatively effective substitute for gasoline — isobutanol releases just around 82% of the heat energy that gasoline does when burned, as compared to the 67% that ethanol does. And, perhaps more importantly, isobutanol doesn’t possess the same significant drawbacks that ethanol does — in particular, it doesn’t possess ethanol’s unfortunate tendency to absorb water, and thus doesn’t damage conventional engines and pipelines in the same way that pure ethanol does. So, while pure ethanol would only be a viable replacement for gasoline if all of the infrastructure in use today was completely replaced, isobutanol cold simply replace gasoline as is — no new infrastructure needed.
Edit by http://www.hiseachem.com
Friday, October 11, 2013
Have a knowledge of phenol
A phenol
is one of a number of chemically active compounds which are found
throughout nature, especially in plants. Their molecules each include a
hydroxyl functional group (OH) bonded to the ring of an aromatic compound
— a molecule that includes at least one ring of carbon atoms. Phenols
exhibit a wide range of properties; some are heralded for their health
benefits, while others are deadly poisons. Some have important
industrial uses as drugs or food additives. The word phenol may also refer to carbolic acid (C6H5OH), the simplest of this group of chemicals.
Phenol is the simplest member of a family of compounds in which an -OH group is attached directly to a benzene ring. Phenol itself is the only one of the family that you are likely to need to know about for UK A level purposes.
There is an interaction between the delocalised electrons in the benzene ring and one of the lone pairs on the oxygen atom. This has an important effect on both the properties of the ring and of the -OH group.
Pure phenol is a white crystalline solid, smelling of disinfectant. It has to be handled with great care because it causes immediate white blistering to the skin. The crystals are often rather wet and discoloured.
Phenol is so inexpensive that it attracts many small-scale uses. It once was widely used as an antiseptic, especially as carbolic soap, from the early 1900s through the 1970s. It is a component of industrial paint strippers used in the aviation industry for the removal of epoxy, polyurethane and other chemically resistant coatings. Phenol derivatives are also used in the preparation of cosmetics including sunscreens, hair colorings, and skin lightening preparations. Concentrated phenol liquids are commonly used in the surgical treatment of ingrown toenails to prevent a section of the toenail from growing back. This process is called phenolization.
When phenol donates a hydrogen ion to water, the electron pair remaining on the oxygen atom becomes delocalized, meaning that it becomes redistributed into the phenyl ring and cannot be assigned with certainty to any one pair of atoms. This effect is possible because of the π bonds in the phenyl ring (bonds that form between overlapping unhybridized p-orbitals). In cyclohexanol, on the other hand, all of the carbons in the ring structure share single bonds and there are no π bonds, so the negative charge on the oxygen does not become delocalized if the hydrogen is donated to water.
In a phenol extraction, the acidity of the whole mixture is important to effectively extract the DNA and RNA. Chemists recommend that the phenol should have a pH higher than 7 so that the water layer can successfully gather the DNA. At a pH of 4.5, which is already considered acidic, the RNA can already be gathered by the water phase. To change the phenol’s acidity or alkalinity, some chemicals are added, such as the compound tris or N-ethylmorpholine.
Edit by http://www.hiseachem.com
Phenol is the simplest member of a family of compounds in which an -OH group is attached directly to a benzene ring. Phenol itself is the only one of the family that you are likely to need to know about for UK A level purposes.
There is an interaction between the delocalised electrons in the benzene ring and one of the lone pairs on the oxygen atom. This has an important effect on both the properties of the ring and of the -OH group.
Pure phenol is a white crystalline solid, smelling of disinfectant. It has to be handled with great care because it causes immediate white blistering to the skin. The crystals are often rather wet and discoloured.
Phenol is so inexpensive that it attracts many small-scale uses. It once was widely used as an antiseptic, especially as carbolic soap, from the early 1900s through the 1970s. It is a component of industrial paint strippers used in the aviation industry for the removal of epoxy, polyurethane and other chemically resistant coatings. Phenol derivatives are also used in the preparation of cosmetics including sunscreens, hair colorings, and skin lightening preparations. Concentrated phenol liquids are commonly used in the surgical treatment of ingrown toenails to prevent a section of the toenail from growing back. This process is called phenolization.
When phenol donates a hydrogen ion to water, the electron pair remaining on the oxygen atom becomes delocalized, meaning that it becomes redistributed into the phenyl ring and cannot be assigned with certainty to any one pair of atoms. This effect is possible because of the π bonds in the phenyl ring (bonds that form between overlapping unhybridized p-orbitals). In cyclohexanol, on the other hand, all of the carbons in the ring structure share single bonds and there are no π bonds, so the negative charge on the oxygen does not become delocalized if the hydrogen is donated to water.
In a phenol extraction, the acidity of the whole mixture is important to effectively extract the DNA and RNA. Chemists recommend that the phenol should have a pH higher than 7 so that the water layer can successfully gather the DNA. At a pH of 4.5, which is already considered acidic, the RNA can already be gathered by the water phase. To change the phenol’s acidity or alkalinity, some chemicals are added, such as the compound tris or N-ethylmorpholine.
Edit by http://www.hiseachem.com
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